[Mimedefang] Content filtering

[Richard Laager]

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> Thought: Write some rules with a consistent name like 
> (NHVTPROP_XXX) for
> SpamAssassin that tag an email with proprietary informaiton.
> 
> Then do a text search on the rules that are hit for outbound 
> email and block
> those that match the rule name above.

The problem here is that it's likely going to be very difficult to
distinguish legitimate mail discussing your primary business than
e-mail which is leaking proprietary information about your primary
business. The keywords are going to be present in both. Also, there
is no way you're going to stop intentional leaks.

Richard Laager

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